Parental mental health problems and substance misuse affect a significant number of British families. Many of these families are living in poverty or on low incomes. In economically and socially challenging times, additional stresses are placed on these already vulnerable families. In December 2011, David Cameron announced plans and a GBP450m fund to support robust engagement aimed at turning around the lives of 120,000 of the country's most 'troubled families'. There is an urgent need for services to ensure that children and families receive support that is based on a full understanding of their day-to-day experience, and of the potential impacts on children's development and life chances. Essential reading for all family service professionals, Building Resilience will also be of interest to service commissioners and academics with interest in 'what helps' to support vulnerable children and families. This 2nd edition has been updated to reflect developments in policy and service provision.